80例正常人体表标测Q-T_d^p的观察  

Observational Studies on Q T p d by Body Surface Potential Mapping in 80 Normal Individuals

作　　者：杨舒玲[1] 许俊堂[1] 肖洁[1] 李俊华[1] 

机构地区：[1]首都医科大学附属北京红十字朝阳医院心内科

出　　处：《首都医科大学学报》1999年第3期181-183,共3页Journal of Capital Medical University

摘　　要：采用９１ 导联体表电位标测法（ Ｂ Ｓ Ｐ Ｍ） 观察８０ 例正常人 Ｑ Ｔｐｄ（ Ｑ 波起点到 Ｔ 波峰值间期的离散度） ，与同步１２ 导联心电图 Ｑ Ｔ 离散度（ Ｑ Ｔｄ） 对照，探讨 Ｂ Ｓ Ｐ Ｍ 条件下测定 Ｑ Ｔｄ 的可行性。结果：① Ｑ Ｔｐ 、 Ｑ Ｔｐｄ 、 Ｑ Ｔｐｃ１ｄ（ Ｂａｚｚｅｔｔ 公式校正） 、 Ｑ Ｔｐｃ２ｄ（ Ｆｒｉｄｅｒｃｉａ 公式校正） 分别为（２９２ ．６９ ±３７ ．７５） ｍｓ 、（３６ ．７７ ±７ ．４０） ｍｓ 、（４０ ．２３ ±９ ．０４） ｍｓ 和（４０ ．１１ ±７ ．７３） ｍｓ ；② Ｑ Ｔｐｄ 与 Ｑ Ｔｄ 、 Ｑ Ｔｐｃ１ｄ 与 Ｑ Ｔｃ１ｄ 、 Ｑ Ｔｐｃ２ｄ 与 Ｑ Ｔｃ２ｄ 有良好的相关性；③３ 个年龄组（１８ ～３５ 岁、３６ ～６０ 岁、６１ ～７０ 岁） 各参数间无显著性差异；④ Ｑ Ｔｐ 女性明显大于男性（ Ｐ＜ ０ ．０５） ，其余各值男女性之间均无显著性差异。提示： Ｂ Ｓ Ｐ Ｍ 测定 Ｑ Ｔｐｄ 简便可行、较为准确，正常值可暂定为５２ ｍｓ 。To evaluate the feasibility of Q T d measurements under circumstances of body surface potential mapping(BSPM), QT p d(dispersion of interval of Q wave onset to T wave peak) was observed by using a computerized automatic mapping system in 80 normal individuals. The findings were compared with the 12 lead Q T d(the dispersion of Q T interval). It was shown that: ① Q T p, Q T p d, Q T p c1d (corrected by Bazzett formula) and Q T p c2d (corrected by Fridercia formula) were (292.69±37.75) ms, ( 36.77 ± 7.40 ) ms, (40.23±9.04) ms and (40.11±7.73) ms respectively. ② Q T d and Q T c measured by BSPM and 12 lead ECG correlated well each other. ③ The differences of above parameters between three age groups(18～35 years, 36～60 years and 61～70 years) were not significant. ④ Q T p of female was longer than that of male( P <0.05), no significant difference was found in other parameters. In conclusion, Q T p d measurement by BSPM might be more accurate and reliable than 12 lead ECG. The normal value of Q T p d was less than 52 ms in this study.

关 键 词：体表心电标测 Q-T^p间期 Q-T^p离散度 

分 类 号：R540.41[医药卫生—心血管疾病]